JP2007048088A - Data recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To record data into a recording medium together with timestamp information, and thereafter, to make the timestamp information corresponding to the data after reception held without losing it even when making the data an attached file and sending it by mail. <P>SOLUTION: In this data recording device 1, a control means 6 controls a recording means such that the recording means records the timestamp information generated by a clock means into a file name associated to the file related to the data to be recorded when the data are recorded, in addition to the data to be recorded. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a data recording apparatus for recording data on a recording medium, and in particular, when data is recorded, data indicating the time at which the data is recorded is recorded in association with the data. The present invention relates to a data recording apparatus configured to be provided with stamp information.

When a plurality of data (files) are recorded on one recording medium, it is necessary to specify each file in order to read the file to be reproduced at the time of reproduction.
For specifying this file, the user can give a file name to each file created by recording data, and the year, month, day, hour, minute, and second when the data is recorded on the recording medium. It is known to cope with this by providing a data recording device with a so-called time stamp function that automatically records time in association with the file.

In particular, today, the recording capacity of a recording medium is rapidly increased, and a large number of data can be recorded on one recording medium. For this reason, when a large number of data recorded on one recording medium is definitely specified or edited, the time stamp function, that is, the time when the data is recorded has a large meaning. have.
The recording medium can record only one piece of data at a time, and cannot record a plurality of data at the same time. Therefore, by applying the time stamp function, the corresponding file can be uniquely specified from the time when the data is recorded.

  Therefore, the following documents are known as a data recording apparatus having a time stamp function capable of knowing the time when data was recorded.

JP-A-9-46390

The time when the data is recorded, that is, the time stamp information indicates a unique time when each data is recorded on the recording medium. Therefore, the user can specify a lot of data (files) recorded on one recording medium based on the time stamp information attached to the data recorded on the recording medium.
Then, when sending a file (data) arbitrarily selected from among those files by a user, a method of reading the specific file, attaching it to a mail and sending it to the other party is used.

Here, if the time stamp information attached to the file (data) attached to the mail is not lost by sending and receiving the mail, the person who received the attached file can also use the time stamp information. .
However, when a file is attached and sent, the time stamp information is lost when the file is received, and the time when the mail is sent and the time when the mail is received can be known, but the file attached to the mail is attached. There arises a problem that the time stamp information, that is, the time when the file is created cannot be specified.

Therefore, when managing or editing multiple files (data) based on time stamp information, if the time when the file was created is missing, editing and management of the file will result. The problem of not being able to occur will arise.
Also, today, since many files can be recorded on one recording medium and sending files by mail is a routine handling, there is a risk of loss of time stamp information by the corresponding amount. The problem is serious from this point.

  In addition, when data is recorded on a recording medium, a file (data) obtained thereby is saved on the Internet, and a visitor downloads the saved file, the time stamp information is lost, and the above-mentioned information is lost. The same problem will occur.

On the other hand, the above publication showing the prior art describes data, adding time stamp information to the data, and sending the data.
However, the description that the time stamp information attached to the data is lost by sending the data is not allowed.

  The present invention has been made in view of the above circumstances. When recording data on a recording medium, the time at which the data is recorded, so-called time stamp information, is added in association with the data, and the recording medium is Even when reading the recorded data (file) and sending it attached to a mail, or even when storing arbitrary data on the Internet and the visitor downloading the stored data The present invention provides a data recording apparatus for recording data so that time stamp information is not lost.

  The present invention is a data recording apparatus configured to record time stamp information at the time of recording data in a file name corresponding to the file when data is recorded by configuring the file on a recording medium. .

The detailed configuration is a recording means for recording input data on a recording medium in a file and recording a file name on the recording medium in association with a file formed by recording the data. And a clock means for generating time stamp information when the recording means records data on the recording medium, and a control means for controlling the data input by the recording means to be recorded on the recording medium. ,
The control means controls the recording means to record the time from the clock means in a file name associated with the data to be recorded when the recording means records data on a recording medium. This is a data recording apparatus configured as described above.

  When data is recorded on the recording medium by the data recording device having such a configuration, the file name is integrally formed corresponding to the file, and the file name is lost even if it is sent as an attached file by mail. Never do.

Here, the clock means may be built in the control means.
However, in the time stamp information, when it is desired to further reduce the time lag between the time indicated by the clock means and the time when the data is actually recorded, the clock means is disposed between the recording means and the control means. A configuration is mentioned.
In particular, when the data to be recorded is video, a composite of video and audio, and the movement of the video needs to be captured by time, the time lag can be ignored between the time indicated by the clock means and the actual data recording time. It is desirable that the clock means be small, and it is desirable that the clock means be disposed closer to the recording means in terms of electrical circuit.

Note that the recordable capacity of the file name is at least a capacity capable of writing time stamp information.
Today, however, the number of files that can be recorded has increased along with the dramatic increase in the capacity of recording media, and the capacity for recording file names has also increased in order to identify many files.

In the present invention, when the data is recorded, the time stamp information is recorded in the file name related to the data, so that the file (data) can be transferred even when the data is sent and received as an attached file by mail. Even when a visitor downloads a file stored on the Internet and stored, the data recording device can retain the time stamp information in the file name without being lost.
Therefore, when data is recorded by the data recording apparatus having such a configuration, the time at which the data was recorded is surely held, which is convenient for editing the data.

The present invention will be described in detail based on the best mode shown in the drawings. However, the present invention is not limited by this form.
The data recording apparatus 1 includes a microphone 2, an amplifier 3, an A / D converter 4, a digital signal processor 5 (hereinafter referred to as “DSP 5”) as recording means, a control means 6, a buffer memory 7, and the like. , A D / A converter 8, an amplifier 9, a speaker 10, an operation means 11, a display means 12, and a data output terminal 13.
Reference numeral 14 denotes a recording medium, specifically a semiconductor memory.

The microphone 2 inputs the sound of the data to be recorded and converts it into an analog signal. The microphone 2 is disposed on the upper surface of a casing (not shown) of the apparatus main body.
The amplifier 3 is connected to the subsequent stage of the microphone 2 and processes the volume of the analog signal indicating the audio data from the microphone 2 to a desired size.

The A / D converter 4 is connected to the subsequent stage of the amplifier 3, inputs an analog signal processed into a desired size, converts it into a digital signal, and outputs it.
The DSP 5 functions as means for recording data on the recording medium 14 when receiving digital signal data from the A / D converter 4 based on a control signal from the control means 6.

The DSP 5 functions as a means for reproducing the data so that the digital signal data recorded on the recording medium 14 is reproduced and sent to the D / A converter 8 based on the control signal from the control means 6. Is.
That is, the DSP 5 is a recording unit and a reproducing unit.

The control means 6 performs control so that the data input by the DSP 5 is recorded on the recording medium 14, and performs control so that the DSP 5 reads the data recorded from the recording medium 14.
The control means 6 incorporates clock means (not shown) for generating time stamp information when the DSP 5 records data on the recording medium 14 so that the clock means generates time stamp information at that time.
Then, the control means 6 functions to record the time stamp information generated by the clock means in the file name associated with the data to be recorded when the DSP 5 records the data on the recording medium 14. Is.

  A bus 15 for sending digital data signals is sent between the A / D converter 4 and D / A converter 8 and the DSP 5, and a digital data signal is sent between the DSP 5 and the control means 6. A bus 16 is interposed between the DSP 5 and the buffer memory 7 and a bus 17 for transmitting digital data signals, and a bus 18 for transmitting the digital data signals is interposed between the buffer memory 7 and the recording medium 14. ing.

The buffer memory 7 temporarily records data from the DSP 5.
That is, data from the DSP 5 is sent to the buffer memory 7 via the bus 17 and temporarily recorded in the buffer memory 7.

The operation means 11 is used by the user to cause the control means 6 to perform a control function, and buttons for performing operations are disposed on the front surface and the top surface of the casing of the apparatus main body.
The display means 12 displays the functional state of the apparatus at that time, and is disposed on the front surface of the casing of the apparatus main body, and includes a liquid crystal display unit (not shown). .
The output end 13 is a terminal portion for taking out data recorded on the recording medium 14.

The data recording device 1 is configured as described above. In the following, the use of the data recording apparatus 1 will be described.
The user carries the data recording device 1 and goes to the lecture hall to record the lecture (record lecture) while listening to the lecture by the lecturer A.
At the lecture hall, the user records the lecture of the speaker A by using the data recording device 1, that is, operates the REC button of the operation means 11 so that the data recording device 1 records the voice data of the speaker A. Then, the data recording apparatus 1 is made to start the recording function.

Here, the data recording apparatus 1 outputs a REC signal for recording data from the operation means 11 to the control means 6.
When the control means 6 receives this REC signal, the time stamp information generated by the clock means is passed through the DSP 5 and the buffer memory 7 to an area for recording data on the recording medium 14, that is, an area for constituting a file. The DSP 5 is controlled so as to record in the associated file name.

Here, the DSP 5 corresponds to the file name corresponding to the area for recording the lecture (voice data) of the lecturer A on the recording medium 14 based on the control signal from the control means 6 from the clock means. Records time stamp information.
On the other hand, the speech of the lecturer A is picked up by the microphone 2, converted into an analog signal, and sent to the amplifier 3.
When the amplifier 3 receives an analog signal related to the speech of the lecturer A from the microphone 2, the amplifier 3 processes the volume to a desired level and sends it to the A / D converter 4.

When an analog signal processed to a desired size is input from the amplifier 3, the A / D converter 4 converts the analog signal into a digital signal and outputs it to the bus 15.
The DSP 5 functions as a data recording unit based on a control signal from the control unit 6 and receives a digital signal related to the speech of the speaker A from the A / D converter 4 via the bus 15. The digital signal is sent to the buffer memory 7 via the bus 17.

The buffer memory 7 temporarily records the digital signal from the bus 17 in a predetermined order, and then the digital signal data temporarily recorded in the buffer memory 7 is sent to the recording medium 14 via the bus 18.
In the recording medium 14, digital signal data related to the lecture by the lecturer A is recorded in a predetermined order in an area where the file is to be configured in this data recording, that is, an area corresponding to the file name.
The display means 12 displays the state of start of use of the data recording device 1, the level of input data (sound) during data recording, and the like.

When the speaker A finishes the lecture, the user operates the operation means 11 to stop the function of the data recording device 1.
Here, the recording medium 14 includes the voice data of the present lecture of the lecturer A and the time stamp information when the recording of the present lecture of the lecturer A is started with the file name associated with the voice data. It is recorded.

When the user gives a second lecture of the speaker A on another day, the user listens to the lecture and uses the data recording apparatus 1 to record the second speaker A on the recording medium 14 by the same procedure as described above. Record the second lecture.
Similarly, the third lecture, the fourth lecture,... Of the lecturer A are recorded on the recording medium 14 using the data recording apparatus 1.

Here, when the user desires the lecture data of the speaker A by a friend, the user does not know how many times the data desired by the friend is the lecture data. All the data (files) of the given lecture is read from the output terminal 13 and sent to a friend as an attached file to the mail.
The friend receives all the data of lecturer A's recorded lecture by mail from the user.

When sending and receiving this mail, all data (files) of the lecture recorded by speaker A and the file name associated with each data will not be lost, and the time stamp information recorded in the file name will also be lost Never do.
Therefore, the friend reads out the time stamp information when each data is recorded from the file name associated with all the data of the lecture recorded by the speaker A sent from the user by mail. Desired data can be specified based on the stamp information.
In addition, even if the friend receives all the data of lecturer A's recorded lecture at random, based on the time stamp information, his / her data is recorded in time order in the data recording order. It can be rearranged and edited.

Note that the data recording apparatus 1 also has a function of reproducing data. That is, when the user desires to reproduce the data recorded on the recording medium 14, a signal for reproducing mode output is sent from the operation means 11 to the control means 6.
Here, the control means 6 sends a control signal for reproducing data from the recording medium 14 to the DSP 5.
Based on the control signal from the control means 6, the DSP 5 reads out audio data related to the lecture by the speaker A from the recording medium 14 via the buffer memory 7 and sends it to the bus 15.

The audio data sent to the bus 15 is sent to the D / A converter 8 where it is converted from a digital signal to an analog signal.
Subsequently, the analog signal obtained by the D / A converter 8 is sent to the amplifier 9, amplified to a desired volume, and sent to the speaker 10.
The analog signal amplified to a desired volume is converted into sound by the speaker 10 and reproduced and output as a lecture by the speaker A.
Further, when the data recording apparatus 1 performs the reproducing function, the level of the output data is displayed by the display means 12.

  In the above-described use, the data of the recording medium 14 is read from the output terminal 13, but a configuration in which the recording medium 14 is detached from the data recording device 1 and the data is read by a device that creates an attached file is also conceivable. Even when data (file) is sent as an attached file by reading data having such a configuration from the recording medium 14, the file name associated with the data will not be lost, and the time stamp information will be lost. This does not happen.

  Further, even when the data (file) recorded on the recording medium 14 is stored on the Internet using the data recording device 1 and the visitor downloads the stored file, the same reason as described above. Since the file name never disappears, there is no problem that the time stamp information disappears.

In the data recording apparatus 1, a clock unit that generates time stamp information for recording data is built in the control unit 6, but may be a single unit or a configuration built in the DSP 5.
In the data recording apparatus 1, the time stamp information when the clock means records data is generated by the user operating the operating means 11, but it is desired to obtain higher data recording simultaneity. In addition, there is a configuration in which the clock means functions corresponding to the sound pickup of the microphone 2, that is, by providing a sensor for detecting the data pickup.

  The data recording apparatus 1 is configured to record audio data, but may be a continuous video, a moving image, a combination of video and audio, or the like.

FIG. 3 is a block diagram illustrating a configuration when a recording medium is connected in the best mode for carrying out the invention.

Explanation of symbols

1: Data recording device 5: Digital signal processor (DSP, recording means and reproducing means)
6: Control means 12: Operation means 13: Output end

Claims (2)

Recording means capable of recording input data on a recording medium in a file and recording a file name in association with the file formed by recording the data on the recording medium; and the recording means A clock means for generating time stamp information when recording data on the recording medium, and a control means for performing control so as to record the data input by the recording means on the recording medium,
The control means controls the recording means to record the time from the clock means in a file name associated with the data to be recorded when the recording means records data on a recording medium. A data recording apparatus configured to do this.
The data recording apparatus according to claim 1, wherein the clock means is built in the control means.

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